package com.nowcoder.community.util;


//写redis语句，通过opsForXXX 传参调用
public class RedisKeyUtil {
    private static final String SPLIT = ":";
    private static final String PREFIX_ENTITY_LIKE = "like:entity";
    private static final String PREFIX_USER_LIKE = "like:user";
    private static final String PREFIX_FOLLOWEE = "followee";
    private static final String PREFIX_FOLLOWER = "follower";
    private static final String PREFIX_KAPTCHA = "kaptcha";
    private static final String PREFIX_TICKET = "ticket";
    private static final String PREFIX_USER = "user";
    private static final String PREFIX_UV = "uv";
    private static final String PREFIX_DAU = "dau";
    private static final String PREFIX_POST="post";
    private static final String PREFIX_DISCUSS = "discuss";

    //  某个实体的赞
    //  like:entityType:entityId -> set(UserId)
    public static String getEntityLikeKey(int entityType, int entityId) {
        return PREFIX_ENTITY_LIKE + SPLIT + entityType + SPLIT + entityId;
    }

    //  某个用户的赞
    public static String getUserLikeKey(int userId) {
        return PREFIX_USER_LIKE + SPLIT + userId;
    }

    //  某个用户关注的实体
    //  followee:userId:entityId -> zset(entityId, now)
    public static String getFolloweeKey(int userId, int entityType) {
        return PREFIX_FOLLOWEE + SPLIT + userId + SPLIT + entityType;
    }

    //  某个用户拥有的粉丝
    //  follower:entityType:entityId -> zset(userId, now)
    public static String getFollowerKey(int entityType, int entityId) {
        return PREFIX_FOLLOWER + SPLIT + entityType + SPLIT + entityId;
    }

    //  登录验证码
    public static String getKaptchaKey(String owner) {
        return PREFIX_KAPTCHA + SPLIT + owner;
    }

    //  登录的凭证
    public static String getTicketKey(String ticket) {
        return PREFIX_TICKET + SPLIT + ticket;
    }

    public static String getUserKey(int userId) {
        return PREFIX_USER + SPLIT + userId;
    }
    //  单日uv
    public static String getUVKey(String date){
        return PREFIX_UV + SPLIT + date;
    }
    //  区间uv
    public static String getUVKey(String startDate, String endDate){
        return PREFIX_UV +SPLIT + startDate + SPLIT + endDate;
    }
    //  单日活跃用户
    public static String getDAUKey(String date){
        return PREFIX_DAU + SPLIT + date;
    }
    //  区间活跃用户
    public static String getDAUKey(String startDate, String endDate){
        return PREFIX_DAU + SPLIT + startDate + SPLIT + endDate;
    }
    //  帖子分数
    public static String getPostScoreKey(){
        return PREFIX_POST + SPLIT + "score";
    }
}
